Automatic lubricator for saws



(No Model\ R. J. EDWARDS AUTOMATIC LUBRIGATOR FOR SAWS.

Patented June 15, 1897.

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llniTEn STATES PATENT UEEIcE.

RICHARD JAMES EDYVARDS, OF GALENA, ILLINOIS.

AUTOMATIC LUBRICATOR FOR SAWS.

SPECIFICATION forming part of Letters Patent No. 584,336, dated June 15,1897.

Application filed March 10, 1897. Serial No. 626,795. (No model.)

To aZZ whom it may concern:

Be it known that I, RICHARD JAMES ED- WARDS, of Galena, in the county ofJo Daviess and State of Illinois, have invented certain new and usefulImprovements in Automatic Lubricators for Saws; and I do hereby declarethe following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to an improvement in automatic lubricators forsaws, the object of the invention being to provide a lubrieating pad orpads embracing the saw and retained during the act of sawing practicallystationary, the. saw moving through the pad or pads during the act ofsawing and having its surface and its teeth lubricated or greased.

\Vith these ends in View my invention consists in the parts andcombinations of parts, as will be more fully described, and pointed outin the claims.

In the accompanyingdrawings, Figure I is a View in section through thesaw-blade and one of the pads. Fig. 2 is a detached View of the yoke forholding the pads. Fig. 3 is a View of the yoke made of wire, and Fig. 4is a detached view of a sheet meta-l tooth clamped to the yoke.

A represents a buck-saw of usual construction, and B the yoke whichcarries the lubricating-pads. This yoke is made of malleable cast-ironin the form shown, or it may be constructed of wire and is sufficientlylarge to receive between its ends any ordinary stick or log of wood. Thefree ends of this yoke are bifurcated, forming the projecting legs 1 and2, which latter, as shown in Fig. 2, are provided with elongated slotsfor the passage of threads or lacings by which the pads 3 are held inplace. The legs constituting the supports for one pad are separatedsufiiciently to freely accommodate the saw-blade between them, and oneor both extend a suitable distance below the teeth of the saw and areprovided at their lowerends with a tooth 4: to engage the log of woodbeing sawed. Each pad is constructed to embrace both sides of the sawand is secured in place against the inner faces of the legs 1 and 2 bylacing or stitching passing through the elongated slots 5 in the legs.Each pad bears against both and limits lateral vibration of the yoke.Each of the curved side sections of yoke 1-3 adjacent to the saw-frameis provided with a pad 8, which latter is secured thereto by means ofstitching or lacing passing through holes located in said. curved sidesections. During the operation of sawing these pads contact with theinner faces of the saw frame when the saw is moved back and forth, thuspractically rendering said operation noiseless. These pads also act ascushions against the transmission of jars and the like to the arms ofthe operator.

IVith the construction herein shown it will be seen that when the saw isplaced on a log or stick with the legs of the yoke on opposite sidesthereof the depending toothed end or ends hold the yoke against movementor at least limit its movement to a distance equal to the difference indiameter between the log being sawed and the distance between the legsat the opposite ends of the yoke, thus practically holding the yoke andpads stationary, while the saw is permitted to move freely between thepads and in contact with the log.

In the construction shown in Fig. 3 Ihave made the yoke of wire bentinto U shape, the ends of the U-shaped yoke being bent to embrace thesaw and receive the pads, as shown, the pads in this instance beingsecured by passing the'threads or lacings around the wire. WVhen thewire y'oke is used, I can bend one end of the wire to form the tooth 4,or I can clamp a sheet-metal tooth 4 to the wire yoke, as shown in Fig.at.

If desired, my improvement can be used on the ordinary hand-saw, inwhich event the guide 6 would be omitted, as there would in such case beno support for the upper end of the yoke.

The pads 3 may be saturated from time to time by pouring thereon anysuitable lubricant.

It is evident that changes in the construc tion and relative arrangementof the several parts might be made without avoiding my invention, andhence I would have it understood that I do not restrict myself to theparticular construction and arrangement of parts shown and described;but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A lubricator for saws, comprising a U- shaped yoke the centralportion of which is bent aside to clear the stick to be sawed,padholders secured to the opposite ends of said yoke and pads secured tosaid holders and adapted to bear against the opposite faces of the saw,substantially as set forth.

2. A lubricator for saws, comprising an approximately U-shaped yoke,pads secured to the opposite ends of said yoke and adapted to bearagainst the opposite faces of the saw, the portion of the'yoke adjacentto the handle of the saw being provided with a dependin g portion havinga projecting tooth or hook, substantially as set forth.

3. A lubricator for saws, a U-shaped yoke the central portion of whichis bent aside to clear the stick to be sawed and having bifurcated endsand pads secured within said bifurcations and adapted to bear againstthe opposite faces of the saw, substantially as set forth.

4. A lubricator for saws, a U-shaped yoke having bifurcated ends, theend adjacent to the handle of the saw being provided with a downwardly-projecting portion having a tooth or hook and pads secured within saidbifurcated ends and adapted to bear against opposite faces of the saw,substantially as set forth.

5. A lubricator for saws, a U-shaped yoke the central portion of whichis bent aside to clear the stick to be sawed and having bifurcated ends,the bifurcated members of said ends being slotted and pads securedWithin said bifurcated ends and secured therein by cords or threadspassing through the pads and through said slots, substantially as setforth.

6. A lubricator for saws, the combination with a U-shaped yoke, thecentral portion of which is bent aside to clear the stick to be sawed,pads at the lower ends of said yoke adapted to bear against the oppositeside faces of the saw and a guide secured centrally to said yoke andadapted to straddle the brace of the saw, substantially as set forth.

7. The combination in asaw, of a U-shaped yoke the central portion ofwhich is bent aside to clear the stick to be sawed, lubricating-padscarried by the ends of said yoke and adapted to engage the oppositefaces of the saw and cushions secured at both sides of said yoke andadapted to prevent contact between the yoke and saw-frame, substantiallyas set forth.

8. The combination with a saw, of a yoke straddling the blade at twopoints and also straddling the central brace of the saw whereby it hasthree bearings upon the saw, the portion which straddles the bladecarrying lubricators for the blade.

In testimony whereof I have signed this specification in the presence oftwo subscribin g witnesses.

RICHARD JAMES EDWARDS.

WVitnesses:

JOHN J. JoNEs, EUGENE J. ESTEY.

